The Department of Education would like to test the hypothesis that the average

# The department of education would like to test the

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Question6  ofThe Department of Education would like to test the hypothesis that the average debt load of graduating students with a bachelor's degree equals \$17,000. A random sample of 34 students had an average debt load of \$18,200. It is believed that the population standard deviation for student debt load is \$4,200. The Department of Education would like to set  α = 0.05. The critical value for this hypothesis test would be ________.   40 -1.96± 1.6451.645
± 1.96 Question7  ofSony would like to test the hypothesis that the average age of a PlayStation user differs from the average age of an Xbox user. A random sample of 32 PlayStation users had an average age of 33.7 years while a random sample of 36 Xbox users had an average age of 35.6 years. Assume that the population standard deviation for the age of PlayStation and Xbox users is 3.7 and 3.5 years, respectively. Sony would like to set  α = 0.05. The critical value for this hypothesis test would be ________.   40 Question8  ofSony would like to test the hypothesis that the average age of a PlayStation user differs from the average age of an Xbox user. A random sample of 32 PlayStation users had an average age of 33.7 years while a random sample of 36 Xbox users had an average age of 35.6 years. Assume that the population standard deviation for the age of PlayStation and Xbox users is 3.7 and 3.5 years, respectively. Sony would like to set  α = 0.05. If Population 1 is defined as PlayStation users and Population 2 is defined as Xbox users, the test statistic for this hypothesis test would be ________.   40 Question9  ofThe federal government would like to test the hypothesis that the average age of men filing for Social Security is higher than the average age of women filing, using  α = 0.05 with the following data:If Population 1 is defined as men and Population 2 is defined as women, the test statistic for this hypothesis test would be ________.   40
Question10  ofTwo real estate companies, Century 21 and RE/MAX, compete with one another in a local market. The manager of the Century 21 office would like to advertise that homes listed with RE/MAX average greater than 10 days more on the market when compared to homes listed with his company. The following data show the sample size and average number of days on the market for the two companies along with the population standard deviations.If Population 1 is defined as RE/MAX and Population 2 is defined as Century 21, the 80% confidence interval for the difference in population means is ________.   40 (17.8, 26.2)(11.5, 32.7)(5.4, 38.6)(-3.0, 47.0)